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| Patents for Joseph C. Gentry | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,277X | Dec. 14, 1830 | J.C. Gentry | Portable Power Machine for Conveying Animal to Machinery | animal powered apparatus | |
| 6,408X | Mar. 07, 1831 | J.C. Gentry | Thrashing machine | threshers and thrashers | |
| 7,168X | Jul. 16, 1832 | J.C. Gentry | Grist mill | grist mills | |
| 9,508X | Mar. 18, 1836 | J.C. Gentry | Metallic mill | miller | |